Unable to login into the forum

I can’t login into the forum. This message appears: “The email address you entered is already in use, but is bound to another account. Please contact customer service.”

Maybe it’s caused by the special character “á” of my name… I changed my username from “Márcio” to “Marcio”, but it didn’t work…

Does anyone know what is the problem?

Solved: the technical support changed my display name (not editable) to another one without special characters. I hope they fix this issue to avoid the same problem with new users in the future.